String Theory -- what is the current status?

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SUMMARY

String theory remains largely unchanged in its status over the past 30 to 40 years, characterized by its mathematical elegance but lacking empirical results. Experts like Edward Witten maintain optimism about its potential to yield meaningful insights in physics, despite ongoing challenges highlighted by Lee Smolin, such as unresolved constants and the arbitrary nature of dimensions. The discussion raises questions about the flexibility of string theory and the feasibility of alternative theories like 'ball theory' or 'spiral theory'.

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  • Familiarity with mathematical frameworks used in theoretical physics
  • Knowledge of the challenges in unifying quantum mechanics and general relativity
  • Awareness of key figures in string theory, such as Edward Witten and Lee Smolin
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  • Research the implications of unresolved constants in string theory
  • Explore the mathematical foundations of string theory and its alternatives
  • Investigate the critiques presented in Lee Smolin's 'The Trouble with Physics'
  • Examine the potential of alternative theoretical frameworks like 'ball theory' and 'spiral theory'
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Particle physicists, theoretical physicists, and students interested in the developments and challenges of string theory and its alternatives.

MMS
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Hi guys,

To the experts of particle physics and of course to anyone else who knows and wants to share, what is the current status of string theory? Is there any progress? regress? are we stuck at a point (if so, I'd love to know which and why)?

Thanks.
 
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String theory is pretty much where it has been for 30 or 40 years ... mathematically elegant and showing great promise but the promise never seems to turn into anything.

There was another thread on this today linking to an interview w/ Whitten. He was optimistic about string theory 25 years ago and he is optimistic about it today, and if he lives another 25 years he'll probably still be optimistic that some day it's going to produce results that are meaningful in physics rather than just in math.
 
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Smolin points out in 'the trouble with physics' that there are 7 constants which never quite settle down, an arbitrary number of dimensions, and (maybe) a special force which keeps the ends of the strings apart (?) Anyhow my question is how easy would it be to create 'ball theory', 'spiral theory' and so forth with such a huge amount of flexibily? My laymans answer - easy peasy, but would like to hear from an expert.
 
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